US HB6879

Requires export licenses for advanced AI chips (classified under Export Control Classification Numbers 3A090, 4A090, or '.z') destined for covered countries listed in Country Group D

Mandates denial of export licenses for advanced integrated circuits to entities headquartered in or primarily located in countries of concern, including China, Hong Kong, and Macau

Creates "approved United States person" designation allowing license-free chip transfers to non-concern countries, with requirements including no more than 10% beneficial ownership by country-of-concern entities

Requires the Under Secretary of Commerce for Industry and Security to issue implementing regulations within 90 days, including physical security, cybersecurity, and know-your-customer standards for approved persons

Includes a 5-year sunset provision and allows the Commerce Department to update the definition of "advanced integrated circuit" after 24 months with 30-day congressional notification